Lubricator.



J. ERIKSON.

LUBRIGATOR.

n APPLICATION FILED APR.9.1910. 1 E GJY'QL Patented Aug. 15,1911.

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ILUBBICATOR.

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specification of reuersratem. Patented Aug. t5. wit.

.pplication vfiled April 9, 1916. Serial No. 554,471.

To all whom 'it may concern: .A

Be; it known that I, JOHN ERIKsoN, 'a

' citizen of the United States, residing at the city of Providence, in thecount-y of Providence and State of' Rhode island, have invented certain nev7 and useful Improvements in Lubricators, vof which the following-is a specification, reference being had therein to the accompanying drawing.

This invention -relates to lubricators of the class to be automatically actuated to -lubricate moving plungers, iiston rods/and the like, and the object o this invention is to provide a lubricating device adapted to be readily applied to the moving part, the saine being actuated by pressure to supply the lubricant to said part.

. A further object is to provide a'controlling valve for automatically regulating the action of the pressure on the lubricatorplunger and cause the lubricant to be fed intermittently to the moving part, means being also 'pro-vided for controlling the frequency of the impulses.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully. dc'- scrbed and particularly pointed out in the appended claims.

`In the accompanying drawings: Figure 1 shovvs'my improved lubricating apparatus as operating upon an elevator plunger.

Fig. 2 s an enlarged cross section through the head of the grease cylinder showing the valve which controls thepressure passageways. Fig. 3- is -a sectionaldetail of the controlling` valve. Fig. lis a sec.

tional view illustrating a modified form of controllingvalve. Fig. 5- is a detail of said modified form of valve. Fig. 6 is a plan view of the ring that embraces the Fig 7 is an enlarged section on line moving member to be lubricated and into a groove 1n which the. lubricant orced. 7-7 of Fig. 6 at the point Where the lubricating receptacle` is attached. Fig. 8# is an enlarged. section on line S-S ofFlg. 6 at thel point vvhere'the supply duct communicates With'the annular groove inthe ring.

My improved lubricating device may be arranged to automatically lubricate any moving parts-of machinery, but the same is more particularly adapted for application te the plunger l of the usual plunger type ofgelevator. This plunger usually stands vertically and reciprocates through a packy ing gland 2c into its casing 3 belo'vfln order that my device may be readily applied to elevators already installed l have provided a ring d preferably of metal, the same being made in halves or split at 5, each half being provided with ears', through which bolts 7 7 are arranged for securing the halves together about the plunger l. These earsl 6 are also forked 4to receive the bolts 8 Which secure the ring in .position to the packing gland or other suitable adjacent support-ing means.v y

A chamber 9 is formed Within the Walls of thisl ring the center portion of which com-- municates with the inlet 10, saidl chamber following around both Ways from said inlet nearly one-half the circumference. of the .ri-n g and provided at its ends only with openings 11--11 which are cut through the inner surface and upward to communicate as at l2, ...ee Figs. 6 and 8, With the annular lubricant receiving and applying groove 13 formed on the internal surface of the ring.

The grease cup is preferably made in the form of a cylinder 14 the inner end of which is provided vvith a head. l5 which may be secured thereto by any suitable means, but preferably' by means of clamps 16--16 which are pivoted at 17 to ears 18--18 en the cylinder, said clamps being adapted to swing down over ears 19-19 on the head l5 against which latter ears the screws 20-20 may be set to hold the head rmly in position and at the same time permit of its ready removal for the purpose of rc-charging the cylinderl .with lubricating material. ,This head is -shovvn as being connected to the lubricating ring through the stop cock 2l.

The piston 22 is packed on both faces by cup packings 23 and is arranged to be r'e-J ciprocated Within the cylinder for the purpose of forcing the lubricant therefrom.

is provided With tlie,usual packing gland 253 through which the piston rod 26 extends. This head is also provided with an extending portion. 27 which is chambered out at 2S The opposite cylinder-head 24 may be se.- cured 1n position by any suitable means and' T end of the valve recess is provided with a pet. or drip'cock 38.

In operating the device the waiter pressure is admitted from the casing 3 through valve 34, and pipe 32 which pressure carries the controllingiv-alve 29 downagainst the-step screw and, passes into the cylinder 14- V through port 30 giving the piston 22 an inisA has accumulated suiiicie'nt to overbalance ward impulse andA forcing aV portion ofv the grease in said cylinder through the pet-cock v21,'channel 9 and annular groove 13 to come in direct Contact with and lubricate the reciprocating` plunger l', l The pressure then passes vout through portBl and acting on the' larger area '36 ofvalve'29 carries the saine.

upward and causes the port 30fto be closed until vsuch time vas the pressure in pipev 32 i' that in the cylinder, or the pressure in the the grease) tov less than thatin thevpipe,

cylinder has decreased (by the recession of thenth'e piston 29 is a ain forced downward l the stop screw' and stem 40, .allowing said controlling valveV to again beforced down to its'position against permitting. the pressure to again act upon t efpiston. 22.I llt will be understood of course that owing to the fact that the pressurein thecylinder 14 and in j the pipe 82 and chamber 28,is-obtai-'iiefl from the water admitted 'tromcasing water vpressure instantly disappears when the piston 22 yieldsy in the actf'of forcing grease to the point where itis-needed. vThe f movementsof this'valve are comparatively slow forcing the grease at` intervalsagainst the plunger as the elevator is. moving in its upward direction, and the frequency of these movements maybe controlled t'o said exist the opening ing conditions by regulating through the gate valve 34n The modification illustrated in Figs. 4 and 5 .shows -a controlling valve 41,. the lower end of which is .provided witha hol-,- low center 'portion 42 `and slots or .apertures 43V communicating therewith. This -.end is-adapte'd to extend downinto the t-ube `44,A which vlltube is threaded into the casing ,for 'the' purposev of adjustment to regulate'.

"the,extent'of the opening of the apertures 43 througlijwhich the pressure in the cylinderfmay escape when saidvalveis raised to. close Atheinlet port 30, whereby the quieln,v Vness of action .of the valve andfrequency i of. pressure impulses. may be controlled..

This 'tube is shown las. being connected with .f an exhaust pipe 45 which may lead back to- I' eo 'the waste. lTheaction of valve 41 in the' lform shown in jFig. 4 is very much quicker the tanlror otherconvenicnt receptacle for than that' of valve 29 in the Jform shown in Fig. 2 as when this latter valve is raisedto Shut-lon' the inlet port 30 the pressure through the water trappel in chamber 28passes' up .through the center valve channel 38,-liftving the relief valve 39, which is hung on the A-the out-let port S1 quickly relieved through I the apertures 43 and pipe 45, thereby permitting the pressure in .pipe 32 to again act upon the valve forcing it 'downward to givev another impulse to the grease supplying piston. It will therefore'beseen that a valve of this latter construction is adaptedto vi-l brate continually or .work with .quick .iin-

pulses, causing a small amount of grease to.

be forced out at short intervals., which arrangement is more particularly adapted'for use on rapid ,running or express elevators,

. Having thus described my invention,what

-Iclaimis: V j 1.'A .lubricator vcomprising a lubricant container, an adjacent chamber .having two ports communicating with vsaid container,

and alvalve in said adjacent chamber, said evalve havingportclo`sing portions spaced differently from'the distance between said two ports whereby'the opening and closing -of the two ports will occur alternately and not simultaneously.

2A lubricator comprising ad lubricant4 container, an adjacent chamberhaving one porti'on of greater Vdiameter than the other one, an linlet port being Vprovided from the smaller chamber to said container, an outlet -being lprovided 'from the container to the larger portion ofthe chamber, and. a valve having portions of different. diameters 'to fit the two 4portions of the Vchamber having dif-4V ferentl diameters,` saidjvalvey lbeing of a vlength to alternately open and close the inlet r and outlet as said valve recipi'ccates;

" 3. A lubricator comprising a lubricant container having h ea'dsfone of` which is removable to enable, grease to be supplied to said container,a piston in said container, an adjacent -chamber having -ports communicating with the lubricant. container., anda valve in said adjacent' chamber, said valve vbeing of 'a length less than Athe ,distance between,- the two ports to alternately open and close the 'two said ports as'the valve reciprocates ioo los

viio

and permit one porttobe-open when the '1 other. is closed. i i

4. A lubricating device comprising a member adapted tov beconnectefd to the part tobe lubricated said member being provided with a recess in its surfacethrough which .the lubricant is applied, acontainerfor the lubricant connected to said member, a press sure connection to said container provided' with a chamber, a .valve movable in said chamber eachend offy said valvel beinoijof a" f l 'different areawhereby: the,v same is adapted to be vopened by the 'initialor-entrance. pressure and closed-by the pressure trom-withiny iso o with an annular recess in Iits interior surtent action on said piston to force the lubri- 14k face through which the lubricant is applied, cant at intervals from said container.

u lubricant container connected to said ring, a In testimony Whereot` I afflx my signature a piston in said container, adpressure connecl in presence of two Witnesses.

tion to said container provi edwith a chamber, a controlling valve movably mounted in "JOHN EBKSON' 1Witnesses: l l

said chamber, and means for imparting to said valve a reciprocatingr action whereby HOWARD E. Brummthe pressure 1s caused to exert an mterrnlt- E.' I, OGDEN. 

